US20230018137A1 - Mobile terminal - Google Patents
Mobile terminal Download PDFInfo
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- US20230018137A1 US20230018137A1 US17/954,203 US202217954203A US2023018137A1 US 20230018137 A1 US20230018137 A1 US 20230018137A1 US 202217954203 A US202217954203 A US 202217954203A US 2023018137 A1 US2023018137 A1 US 2023018137A1
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- United States
- Prior art keywords
- temperature equalization
- housing
- mobile terminal
- flexible screen
- unfolded
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- 230000009975 flexible effect Effects 0.000 claims abstract description 142
- 238000005452 bending Methods 0.000 claims abstract description 47
- 230000003014 reinforcing effect Effects 0.000 claims description 34
- 230000004308 accommodation Effects 0.000 claims description 27
- 238000010586 diagram Methods 0.000 description 20
- 239000000463 material Substances 0.000 description 8
- 239000010410 layer Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
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- 238000000034 method Methods 0.000 description 3
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- 229910021389 graphene Inorganic materials 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
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Images
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
- G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
- G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1656—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
- G06F1/203—Cooling means for portable computers, e.g. for laptops
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
- H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
- H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
- H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
Definitions
- This application relates to the field of electronic device technologies, and in particular, to a mobile terminal.
- a temperature equalization plate is used to balance temperatures of parts that are of the flexible screen and that are located on two sides of the rotating shaft.
- the temperature equalization plate is in contact with the flexible screen. After the mobile terminal is used for a long time, the temperature equalization plate is slack and arched to squeeze the flexible screen, which affects a display effect and causes poor user experience.
- This application provides a mobile terminal, to prevent a temperature equalization plate from arching to squeeze a flexible screen.
- the mobile terminal provided in this application includes a rotating member, a flexible screen, a bending support part, and a temperature equalization plate.
- the flexible screen includes two unfolded regions and a bent region located between the two unfolded regions, and the bent region is disposed opposite to the rotating member.
- the bending support part is located between the flexible screen and the rotating member, to support the bent region of the flexible screen.
- the temperature equalization plate includes temperature equalization parts opposite to the two unfolded regions in a one-to-one correspondence and a flexible connection part that connects the two temperature equalization parts.
- the flexible connection part is located on a side that is of the bending support part and that is away from the flexible screen, to balance temperatures in the two unfolded regions.
- the flexible connection part of the temperature equalization plate is distributed on the side that is of the bending support part and that is away from the flexible screen. Therefore, even if the temperature equalization plate is slack after being used for a long time, the temperature equalization plate cannot squeeze the flexible screen after being slack and arched, because the flexible connection part of the temperature equalization plate is blocked by the bending support part and cannot be in contact with the bent region of the flexible screen. Therefore, user experience is improved.
- a housing is disposed on a side that is of each unfolded region of the flexible screen and that is away from a light-emitting surface.
- Each group of unfolded region, housing, and temperature equalization part that correspond to each other form a module group.
- the temperature equalization part is located between the unfolded region and the housing, so that the temperature equalization part can exchange heat with the corresponding unfolded region more directly and effectively.
- an accommodation slot is formed between the housing and the bending support part.
- a thickness of the flexible connection part is greater than a width of the accommodation slot, to prevent the flexible connection part from passing through the accommodation slot to touch the flexible screen, thereby preventing the flexible screen from being squeezed by the flexible connection part of the temperature equalization plate.
- a screen reinforcing plate configured to support the unfolded region is further disposed on a side surface that is of each unfolded region and that is away from a light-emitting surface.
- an accommodation slot is formed between the housing and the bending support part.
- An orthographic projection of the screen reinforcing plate on the light-emitting surface of the flexible screen covers an orthographic projection of the accommodation slot on the light-emitting surface of the flexible screen.
- the screen reinforcing plate shields a corresponding region that is between the housing and the unfolded region and that is opposite to the accommodation slot. Even if the flexible connection part of the temperature equalization plate passes through the accommodation slot, the flexible connection part can touch the screen reinforcing plate at most and cannot be in contact with the flexible screen.
- each temperature equalization part located between the unfolded region and the housing that correspond to each other, there is overlapping between the orthographic projection of the screen reinforcing plate on the light-emitting surface of the flexible screen and an orthographic projection of the bending support part on the light-emitting surface of the flexible screen.
- the flexible connection part of the temperature equalization plate at least needs to pass through a slot channel between the screen reinforcing plate and the bending support part, to be in contact with the flexible screen, which further increases difficulty.
- a housing is disposed on a side that is of each unfolded region of the flexible screen and that is away from a light-emitting surface.
- Each group of unfolded region, housing, and temperature equalization part that correspond to each other form a module group.
- the temperature equalization part is located on a side that is of the housing and that is away from the flexible screen.
- a rear cover is further disposed on a side surface that is of the housing and that is away from the flexible screen.
- the temperature equalization part is fastened to the corresponding rear cover.
- a redundant structure is formed in the flexible connection part.
- the redundant structure may be formed in a plurality of manners.
- the flexible connection part is ripple-shaped.
- the flexible connection part is bend-shaped.
- FIG. 1 a is a schematic diagram of a structure of a mobile terminal in an expanded state in the conventional technology:
- FIG. 1 b is a schematic diagram of the mobile terminal shown in FIG. 1 a after the mobile terminal is used for a long time:
- FIG. 2 a is a schematic diagram of a mobile terminal in an expanded state according to an embodiment of this application:
- FIG. 2 b is a schematic diagram of the mobile terminal shown in FIG. 2 a in a folded state
- FIG. 2 c is a T-direction view of a structure of the mobile terminal shown in FIG. 2 a after a flexible screen and a screen reinforcing plate are removed:
- FIG. 3 a is a possible cross-sectional diagram of a temperature equalization plate shown in FIG. 2 a;
- FIG. 3 b is a schematic diagram of a structure of another temperature equalization plate that may be used in a mobile terminal according to an embodiment of this application;
- FIG. 4 is a schematic diagram of another mobile terminal in an expanded state according to an embodiment of this application:
- FIG. 5 is a schematic diagram of another mobile terminal in an expanded state according to an embodiment of this application.
- FIG. 6 a is a schematic diagram of another mobile terminal in an expanded state according to an embodiment of this application.
- FIG. 6 b is a schematic diagram of the mobile terminal shown in FIG. 6 a in a folded state.
- the mobile terminal may be a foldable mobile phone, a foldable tablet computer, a foldable PDA, or the like. Disadvantages of an existing mobile terminal are described below by using a specific instance.
- FIG. 1 a is a schematic diagram of a structure of a mobile terminal in an expanded state in the conventional technology.
- a foldable mobile phone is used as an example.
- the mobile terminal includes a flexible screen 30 , a middle frame 71 , a middle frame 72 , a rotating shaft, a shaft housing 60 , and a shaft support plate 50 .
- the flexible screen 30 includes an unfolded region 31 , an unfolded region 32 , and a bent region 33 (a region between A and B) that connects the unfolded region 31 and the unfolded region 32 .
- the middle frame 71 is located on a side that is of the unfolded region 31 and that is away from a light-emitting surface
- the middle frame 72 is located on a side that is of the unfolded region 32 and that is away from the light-emitting surface.
- the shaft support plate 50 is located on a side that is of the bent region 33 and that is away from the light-emitting surface, and is configured to provide active support the bent region 33 .
- the shaft housing 60 is located on a side that is of the shaft support plate 50 and that is away from the flexible screen 30 .
- the rotating shaft (not shown in the figure) is located between the shaft support plate 50 and the shaft housing 60 , and the middle frame 71 cooperates with the middle frame 72 through rotation of the rotating shaft, so that the mobile terminal switches between a folded state and an expanded state.
- a light-emitting surface of the unfolded region 31 is opposite to a light-emitting surface of the unfolded region 32 .
- an element with a relatively large volume is disposed in the middle frame 71
- an element with a relatively small volume is disposed in the middle frame 72 .
- heat sources generating a relatively large amount of heat in the middle frame 71 are concentrated in the middle frame 71 .
- FIG. 1 b is a schematic diagram of the mobile terminal shown in FIG. 1 a after the mobile terminal is used for a long time. Referring to FIG.
- a part that is of the temperature equalization plate 40 and that is opposite to the bent region 33 is slack and raised as the middle frame 71 and the middle frame 72 are repeatedly folded and expanded.
- the bent region 33 of the flexible screen 30 is partially arched, which affects user experience.
- the embodiments of this application provide a mobile terminal.
- FIG. 2 a is a schematic diagram of a mobile terminal in an expanded state according to an embodiment of this application.
- FIG. 2 b is a schematic diagram of the mobile terminal shown in FIG. 2 a in a folded state.
- FIG. 2 c is a T-direction view of a structure of the mobile terminal shown in FIG. 2 a after a flexible screen and a screen reinforcing plate are removed.
- the mobile terminal includes a flexible screen 600 , a folding support assembly, and a bending support part 340 .
- the flexible screen 600 includes an unfolded region 610 , an unfolded region 620 , and a bent region 630 (a region between E and F) that connects the unfolded region 610 and the unfolded region 620 .
- the bent region 630 is flexibly deformed when the mobile terminal switches between a folded state and expanded state.
- the mobile terminal further includes a screen reinforcing plate 210 and a screen reinforcing plate 220 .
- the screen reinforcing plate 210 is located on a back surface that is of the unfolded region 610 and that is away from a light-emitting surface, and is in contact with the back surface to provide support.
- the screen reinforcing plate 220 is located on a back surface that is of the unfolded region 620 and that is away from the light-emitting surface, and is in contact with the back surface to provide support.
- the folding support assembly includes a housing 310 , a housing 320 , and a rotating member (which is not shown in the figure for simplification) that connects the housing 310 and the housing 320 .
- the housing 310 and the housing 320 are sometimes referred to as middle frames.
- the rotating member may be a hinge, or may be another part that has a flexible bending function.
- the housing 310 and the housing 320 cooperate in rotation around an axis L (refer to FIG. 2 c ) by using a rotating member such as a hinge.
- the housing 310 is located on a side that is of the unfolded region 610 and that is away from the light-emitting surface, and is disposed opposite to the unfolded region 610 .
- the housing 310 has a bearing surface configured to provide support (which is indirect support in FIG. 2 a ) for the unfolded region 610 .
- the housing 320 is located on a side that is of the unfolded region 620 and that is away from the light-emitting surface, and is disposed opposite to the unfolded region 620 .
- the housing 320 has a bearing surface configured to provide support (which is indirect support in FIG. 2 a ) for the unfolded region 620 .
- the foregoing parts of the folding support assembly form a skeleton of the mobile terminal, and provide support for the parts of the flexible screen 600 .
- the mobile terminal further includes a circuit board 420 disposed in the housing 310 and a heat source 410 mounted on the circuit board 420 , and the heat source 410 may be a CPU.
- a battery 430 is accommodated in the housing 320 .
- the heat source 410 generates a relatively large amount of heat, and therefore the unfolded region 610 and the unfolded region 620 of the flexible screen 600 are heated unevenly. It should be understood that allocation of the elements in the housing 310 and the housing 320 is merely an example, and there may be another element layout that causes uneven heating of the flexible screen.
- the bending support part 340 is located on a side that is of the bent region 630 and that is away from the light-emitting surface.
- the bending support part 340 may be a shaft support plate.
- the bending support part 340 may specifically include a plurality of support boards 341 arranged at intervals from the unfolded region 610 to the unfolded region 620 .
- Each support board 341 extends in a direction of the axis L, and every two adjacent support boards 341 may be flexibly connected by using a flexible material. Therefore, each support board 341 may be well attached to the bent region 630 to provide active support for the folded region 630 .
- the “active support” means the following: Referring to FIG. 2 a , when the mobile terminal is in an expanded state, the bending support part 340 provides support for the bent region 630 as the bent region 630 expands. Referring to FIG. 2 b , when the mobile terminal is in a folded state, the bent region 630 is flexibly bent, and the bending support part 340 still provides support for the bent region 630 as the bent region 630 is bent and deformed.
- the bending support part 340 is not limited to the form in FIG. 2 c , and may also be another member that can provide active support for the bent region 630 .
- An accommodation slot G 1 is formed between the housing 310 and the bending support part 340
- an accommodation slot G 2 is formed between the housing 320 and the bending support part 340 .
- the mobile terminal provided in this embodiment of this application further includes a temperature equalization plate 700 .
- the temperature equalization plate 70 includes a temperature equalization part 710 , a temperature equalization part 720 , and a flexible connection part 730 connecting the temperature equalization part 710 and the temperature equalization part 720 .
- the temperature equalization part 710 is located between the screen reinforcing plate 210 and the housing 310
- the temperature equalization part 720 is located between the screen reinforcing plate 220 and the housing 320 .
- a location at which the temperature equalization part 710 is connected to the flexible connection part 730 passes through the accommodation slot G 1
- a location at which the temperature equalization part 720 is connected to the flexible connection part 730 passes through the accommodation slot G 2 .
- the flexible connection part 730 is located on a side that is of the bending support part 340 and that is away from the bent region 630 , instead of passing between the bending support part 340 and the bent region 630 .
- the flexible connection part 730 does not easily touch the flexible screen 600 , which mitigates and even eliminates a technical problem that the bent region 630 of the flexible screen 600 is partially arched because the temperature equalization plate 700 is slack, thereby improving user experience.
- the unfolded region 610 , the housing 310 , and the temperature equalization part 710 form a module group
- the unfolded region 620 , the housing 320 , and the temperature equalization part 720 form a module group.
- a material of the flexible connection part 730 needs to have a flexible property.
- the flexible connection part 730 is gradually tightened.
- the flexible connection part 730 is lengthened in the mobile terminal shown in FIG. 2 a , so that a redundant structure is formed at one end of the flexible connection part 730 .
- the “redundant structure” means the following: In a process in which the flexible connection part 730 extends from the temperature equalization part 710 to the temperature equalization part 720 , an actual extended length of the flexible connection part 730 is greater than a minimum possible extended length of the flexible connection part 730 (that is, a length extended when the flexible connection part 730 extends clinging to a surface that is of the bending support part 340 and that is away from the flexible screen 600 ). As shown in FIG. 2 b , the flexible connection part 730 just expands when the mobile terminal in FIG.
- the flexible connection part 730 may be further disposed in a ripple shape, which is alternatively referred to as a wrinkle shape. These ripples are arranged in a direction from the temperature equalization part 710 to the temperature equalization part 720 , which can also cushion tensile force caused to the flexible connection part 730 when the mobile terminal is folded.
- the flexible connection part 730 may form a ripple based on the foregoing bend structure.
- the mobile terminal further includes a rear cover 110 , a rear cover 120 , and a shaft housing 330 .
- the rear cover 110 is disposed on a side that is of the housing 310 and that is away from the flexible screen 600 , and is fastened to the housing 310 .
- the rear cover 120 is disposed on a side that is of the housing 320 and that is away from the flexible screen 600 , and is fastened to the housing 320 .
- the shaft housing 330 is disposed on a side that is of the bending support part 340 and that is away from the flexible screen 600 .
- the rotating member such as a hinge configured to connect the housing 310 and the housing 320 is located between the bending support part 340 and the shaft housing 330 .
- the flexible connection part 730 of the temperature equalization plate 700 may be located between the rotating member and the bending support part 340 , or may be located between the rotating member and the shaft housing 330 .
- FIG. 3 a is a possible cross-sectional diagram of the temperature equalization plate 700 shown in FIG. 2 a .
- the temperature equalization plate includes a capillary structure 703 , an upper cover plate 701 , and a lower cover plate 702 that are disposed opposite to each other.
- the upper cover plate 701 and the lower cover plate 702 may form a closed cavity through welding or the like.
- the capillary structure 703 is disposed in the cavity, and the capillary structure 703 is filled with a specific amount of working fluid, such as a deionized water or other coolant, to form a phase change cycle system.
- a material of the upper cover plate 701 and a material of the lower cover plate 702 each may be a metal material such as copper or copper alloy, or may be a non-metal material with relatively good flexibility, such as polyimide PI, rubber, or another high molecular material.
- the capillary structure 703 may be made of copper powder, a copper braided mesh, or tow.
- the temperature equalization plate 700 may be directly made of a material with relatively good heat dissipation performance, such as graphite or graphene, and a ripple or bend structure is formed in the flexible connection part 730 ; or both a ripple and a bend are used as redundant structures.
- a material with relatively good heat dissipation performance such as graphite or graphene
- a ripple or bend structure is formed in the flexible connection part 730 ; or both a ripple and a bend are used as redundant structures.
- FIG. 3 b is a schematic diagram of a structure of another temperature equalization plate that may be used in a mobile terminal according to an embodiment of this application.
- both the temperature equalization part 710 and the temperature equalization part 720 are flat, and the flexible connection part 730 connecting the temperature equalization parts 710 and 720 is ripple-shaped.
- the temperature equalization part 710 , the temperature equalization part 720 , and the flexible connection part 730 each may be made of a material with relatively good heat dissipation performance, such as graphite or graphene.
- protection layers 801 and 802 are respectively disposed on two sides of the temperature equalization plate.
- the adhesive layer used herein refers to a material layer playing a bonding function, which may also have specific elasticity, may be compressed or stretched, and may be one or more layers.
- FIG. 4 is a schematic diagram of another mobile terminal in an expanded state according to an embodiment of this application.
- a difference between the mobile terminal shown in FIG. 4 and the mobile terminal shown in FIG. 2 a lies in the following:
- a protruded part 341 (a part belonging to the bending support part 340 ) is formed at an end that is of the bending support part 340 and that is close to the housing 310 .
- An accommodation slot G 1 is formed between the protruded part 341 and the housing 310 .
- An orthographic projection of the screen reinforcing plate 210 on the light-emitting surface of the flexible screen 600 covers an orthographic projection of the accommodation slot G 1 on the light-emitting surface of the flexible screen 600 .
- the protruded part 341 and an edge part of the screen reinforcing plate 210 are alternatively disposed.
- a partial region of an orthographic projection of the protruded part 341 on the light-emitting surface of the flexible screen 600 overlaps a partial region of an orthographic projection of the screen reinforcing plate 210 on the light-emitting surface of the flexible screen 600 .
- the temperature equalization plate 700 still passes through the accommodation slot G 1 .
- the temperature equalization plate 700 needs to pass through a bent channel formed between the screen reinforcing plate 210 and a side surface that is of the bending support part 340 and that is close to the screen reinforcing plate 210 , which further increases difficulty for the temperature equalization plate 700 to touch the flexible screen 600 .
- an accommodation groove is formed on the side surface that is of the bending support part 340 and that is close to the screen reinforcing plate 210 , and an edge of the screen reinforcing plate 210 is fitted (a specific active gap is kept) into the accommodation groove. This can also prevent, to some extent, the temperature equalization plate 700 from touching the flexible screen 600 .
- the orthographic projection of the screen reinforcing plate 210 on the light-emitting surface of the flexible screen 600 can cover an orthographic projection of the accommodation slot G 1 on the light-emitting surface of the flexible screen 600 .
- this can still prevent, to some extent, the temperature equalization plate 700 from touching the flexible screen 600 .
- a protruded part 342 (a part belonging to the bending support part 340 ) is formed at an end that is of the bending support part 340 and that is close to the housing 320 , and an accommodation slot G 2 is formed between the protruded part 342 and the housing 320 .
- the bending support part 340 , the screen reinforcing plate 220 , and the accommodation slot G 2 correspondingly refer to the relationship between the bending support part 340 , the screen reinforcing plate 210 , and the accommodation slot G 1 .
- the mobile terminal further includes a flexible circuit board 500 , and the flexible circuit board 500 sequentially passes between the housing 310 and the rear cover 110 , between the shaft housing and the rotating member, and between the housing 320 and the rear cover 120 .
- the flexible circuit board 500 may be configured to electrically connect lines on two sides of the rotating member, for example, electrically connect an electronic element on the housing 310 and an electronic element on the housing 320 .
- FIG. 5 is a schematic diagram of another mobile terminal in an expanded state according to an embodiment of this application.
- a difference between the mobile terminal shown in FIG. 5 and the mobile terminal shown in FIG. 2 a lies in the following:
- a thickness d of the flexible connection part 730 is greater than a width of the accommodation slot G 1 , to prevent the flexible connection part 730 from passing through the accommodation slot G 1 to touch a partial region that is of the flexible screen 600 and that is exposed from a slot between the bending support part 340 and the screen reinforcing plate 210 , and further prevent the flexible connection part 730 from moving to a location between the screen reinforcing plate 210 and the housing 310 .
- the temperature equalization part 710 is straight and is not easily arched, and the flexible connection part is also prevented from being tensioned to be damaged.
- the thickness d of the flexible connection part 730 is greater than a width of the accommodation slot G 2 can also achieve a similar effect.
- FIG. 6 a is a schematic diagram of another mobile terminal in an expanded state according to an embodiment of this application.
- FIG. 6 b is a schematic diagram of the mobile terminal shown in FIG. 6 a in a folded state.
- a difference between the mobile terminal shown in FIG. 6 a and FIG. 6 b and the mobile terminal shown in FIG. 2 a to FIG. 2 c lies in the following:
- the temperature equalization part 710 is located between the housing 310 and the rear cover 110 , and the temperature equalization part 710 may be bonded to the rear cover 110 , which may also balance temperatures in the unfolded region 610 and the unfolded region 620 . Setting may be specifically selected based on a requirement. Alternatively, the temperature equalization part 710 may be located between the housing 320 and the rear cover 120 .
- the temperature equalization part 720 is disposed between the housing 310 and the rear cover 110 , or the temperature equalization part 720 is disposed between the housing 320 and the rear cover 120 .
Abstract
Example mobile terminals are disclosed. One example terminal includes a rotating member, a flexible screen, a bending support part, and a temperature equalization plate. The flexible screen includes two unfolded regions and a bent region that is disposed opposite to the rotating member. The bending support part is located between the flexible screen and the rotating member. The temperature equalization plate is configured to balance temperatures in the two unfolded regions and includes two temperature equalization parts opposite to the two unfolded regions in a one-to-one correspondence and a flexible connection part that connects the two temperature equalization parts. The flexible connection part is located on a side of the bending support part and away from the flexible screen.
Description
- This application is a continuation of International Application No. PCT/CN2021/072104, filed on Jan. 15, 2021, which claims priority to Chinese Patent Application No. 202020442975.0, filed on Mar. 30, 2020. The disclosures of the aforementioned applications are hereby incorporated by reference in their entireties.
- This application relates to the field of electronic device technologies, and in particular, to a mobile terminal.
- In recent years, there are mobile phones and tablet computers in the market to meet a user' requirement for different display areas. With appearance of flexible screens, manufacturers further design foldable mobile terminals, to meet requirements for both a large screen and portability.
- During research and development, to simplify a circuit, generally, elements with a relatively large volume such as a CPU and a camera module are disposed on one side of a rotating shaft, and an element with a relatively small volume is disposed on the other side of the rotating shaft. Due to this design, one side of the rotating shaft heats seriously, causing a color difference on the flexible screen. To resolve this, a temperature equalization plate is used to balance temperatures of parts that are of the flexible screen and that are located on two sides of the rotating shaft.
- However, in the conventional technology, the temperature equalization plate is in contact with the flexible screen. After the mobile terminal is used for a long time, the temperature equalization plate is slack and arched to squeeze the flexible screen, which affects a display effect and causes poor user experience.
- This application provides a mobile terminal, to prevent a temperature equalization plate from arching to squeeze a flexible screen.
- The mobile terminal provided in this application includes a rotating member, a flexible screen, a bending support part, and a temperature equalization plate. The flexible screen includes two unfolded regions and a bent region located between the two unfolded regions, and the bent region is disposed opposite to the rotating member. The bending support part is located between the flexible screen and the rotating member, to support the bent region of the flexible screen. The temperature equalization plate includes temperature equalization parts opposite to the two unfolded regions in a one-to-one correspondence and a flexible connection part that connects the two temperature equalization parts. The flexible connection part is located on a side that is of the bending support part and that is away from the flexible screen, to balance temperatures in the two unfolded regions. The flexible connection part of the temperature equalization plate is distributed on the side that is of the bending support part and that is away from the flexible screen. Therefore, even if the temperature equalization plate is slack after being used for a long time, the temperature equalization plate cannot squeeze the flexible screen after being slack and arched, because the flexible connection part of the temperature equalization plate is blocked by the bending support part and cannot be in contact with the bent region of the flexible screen. Therefore, user experience is improved.
- There may be a plurality of locations for disposing each temperature equalization part of the temperature equalization plate.
- For example, in a specific implementable solution, a housing is disposed on a side that is of each unfolded region of the flexible screen and that is away from a light-emitting surface. Each group of unfolded region, housing, and temperature equalization part that correspond to each other form a module group. In at least one module group, the temperature equalization part is located between the unfolded region and the housing, so that the temperature equalization part can exchange heat with the corresponding unfolded region more directly and effectively.
- In a specific implementable solution, in a module group of each temperature equalization part located between the unfolded region and the housing that correspond to each other, an accommodation slot is formed between the housing and the bending support part. A thickness of the flexible connection part is greater than a width of the accommodation slot, to prevent the flexible connection part from passing through the accommodation slot to touch the flexible screen, thereby preventing the flexible screen from being squeezed by the flexible connection part of the temperature equalization plate.
- In a specific implementable solution, a screen reinforcing plate configured to support the unfolded region is further disposed on a side surface that is of each unfolded region and that is away from a light-emitting surface. In a module group of each temperature equalization part located between the unfolded region and the housing that correspond to each other, an accommodation slot is formed between the housing and the bending support part. An orthographic projection of the screen reinforcing plate on the light-emitting surface of the flexible screen covers an orthographic projection of the accommodation slot on the light-emitting surface of the flexible screen. The screen reinforcing plate shields a corresponding region that is between the housing and the unfolded region and that is opposite to the accommodation slot. Even if the flexible connection part of the temperature equalization plate passes through the accommodation slot, the flexible connection part can touch the screen reinforcing plate at most and cannot be in contact with the flexible screen.
- In a specific implementable solution, in the module group of each temperature equalization part located between the unfolded region and the housing that correspond to each other, there is overlapping between the orthographic projection of the screen reinforcing plate on the light-emitting surface of the flexible screen and an orthographic projection of the bending support part on the light-emitting surface of the flexible screen. The flexible connection part of the temperature equalization plate at least needs to pass through a slot channel between the screen reinforcing plate and the bending support part, to be in contact with the flexible screen, which further increases difficulty.
- For another example, in a specific implementable solution, a housing is disposed on a side that is of each unfolded region of the flexible screen and that is away from a light-emitting surface. Each group of unfolded region, housing, and temperature equalization part that correspond to each other form a module group. In at least one module group, the temperature equalization part is located on a side that is of the housing and that is away from the flexible screen.
- In a specific implementable solution, a rear cover is further disposed on a side surface that is of the housing and that is away from the flexible screen. In the module group of each temperature equalization part located between the unfolded region and the housing that correspond to each other, the temperature equalization part is fastened to the corresponding rear cover.
- To prevent the flexible connection part from bearing relatively large tensile force in a process of opening or closing the mobile terminal, in a specific implementable solution, a redundant structure is formed in the flexible connection part. The redundant structure may be formed in a plurality of manners. For example, in a possible implementation, the flexible connection part is ripple-shaped. In another possible implementation, the flexible connection part is bend-shaped.
-
FIG. 1 a is a schematic diagram of a structure of a mobile terminal in an expanded state in the conventional technology: -
FIG. 1 b is a schematic diagram of the mobile terminal shown inFIG. 1 a after the mobile terminal is used for a long time: -
FIG. 2 a is a schematic diagram of a mobile terminal in an expanded state according to an embodiment of this application: -
FIG. 2 b is a schematic diagram of the mobile terminal shown inFIG. 2 a in a folded state; -
FIG. 2 c is a T-direction view of a structure of the mobile terminal shown inFIG. 2 a after a flexible screen and a screen reinforcing plate are removed: -
FIG. 3 a is a possible cross-sectional diagram of a temperature equalization plate shown inFIG. 2 a; -
FIG. 3 b is a schematic diagram of a structure of another temperature equalization plate that may be used in a mobile terminal according to an embodiment of this application; -
FIG. 4 is a schematic diagram of another mobile terminal in an expanded state according to an embodiment of this application: -
FIG. 5 is a schematic diagram of another mobile terminal in an expanded state according to an embodiment of this application; -
FIG. 6 a is a schematic diagram of another mobile terminal in an expanded state according to an embodiment of this application; and -
FIG. 6 b is a schematic diagram of the mobile terminal shown inFIG. 6 a in a folded state. - To make the objectives, technical solutions, and advantages of this application clearer, the following further describes this application in detail with reference to the accompanying drawings.
- To facilitate understanding of the mobile terminal provided in the embodiments of this application, a scenario to which the mobile terminal is applied is first described. The mobile terminal may be a foldable mobile phone, a foldable tablet computer, a foldable PDA, or the like. Disadvantages of an existing mobile terminal are described below by using a specific instance.
-
FIG. 1 a is a schematic diagram of a structure of a mobile terminal in an expanded state in the conventional technology. Referring toFIG. 1 a , in the conventional technology, a foldable mobile phone is used as an example. The mobile terminal includes aflexible screen 30, amiddle frame 71, amiddle frame 72, a rotating shaft, ashaft housing 60, and ashaft support plate 50. Theflexible screen 30 includes an unfoldedregion 31, an unfoldedregion 32, and a bent region 33 (a region between A and B) that connects the unfoldedregion 31 and the unfoldedregion 32. Themiddle frame 71 is located on a side that is of the unfoldedregion 31 and that is away from a light-emitting surface, and themiddle frame 72 is located on a side that is of the unfoldedregion 32 and that is away from the light-emitting surface. Theshaft support plate 50 is located on a side that is of thebent region 33 and that is away from the light-emitting surface, and is configured to provide active support thebent region 33. Theshaft housing 60 is located on a side that is of theshaft support plate 50 and that is away from theflexible screen 30. The rotating shaft (not shown in the figure) is located between theshaft support plate 50 and theshaft housing 60, and themiddle frame 71 cooperates with themiddle frame 72 through rotation of the rotating shaft, so that the mobile terminal switches between a folded state and an expanded state. When the mobile terminal is in a folded state, a light-emitting surface of the unfoldedregion 31 is opposite to a light-emitting surface of the unfoldedregion 32. To simplify circuit design, an element with a relatively large volume is disposed in themiddle frame 71, and an element with a relatively small volume is disposed in themiddle frame 72. As a result, heat sources generating a relatively large amount of heat in themiddle frame 71 are concentrated in themiddle frame 71. For example, a CPU (Central Processing Unit) 80 is disposed in themiddle frame 71, which generates a relatively large amount of heat. Consequently, the unfoldedregion 31 obviously suffers from more heat than the unfoldedregion 32. To resolve this problem, atemperature equalization plate 40 is added to balance temperatures in the unfoldedregion 31 and the unfoldedregion 32. Thetemperature equalization plate 40 sequentially passes between the unfoldedregion 31 and themiddle frame 71, between thebent region 33 and theshaft support plate 50, and between the unfoldedregion 32 and themiddle frame 72.FIG. 1 b is a schematic diagram of the mobile terminal shown inFIG. 1 a after the mobile terminal is used for a long time. Referring toFIG. 1 b , as the mobile terminal is used for a longer time, a part that is of thetemperature equalization plate 40 and that is opposite to thebent region 33 is slack and raised as themiddle frame 71 and themiddle frame 72 are repeatedly folded and expanded. As a result, thebent region 33 of theflexible screen 30 is partially arched, which affects user experience. - To resolve this problem, the embodiments of this application provide a mobile terminal.
-
FIG. 2 a is a schematic diagram of a mobile terminal in an expanded state according to an embodiment of this application.FIG. 2 b is a schematic diagram of the mobile terminal shown inFIG. 2 a in a folded state.FIG. 2 c is a T-direction view of a structure of the mobile terminal shown inFIG. 2 a after a flexible screen and a screen reinforcing plate are removed. With reference toFIG. 2 a ,FIG. 2 b , andFIG. 2 c , using a mobile phone as an example, the mobile terminal includes aflexible screen 600, a folding support assembly, and abending support part 340. - Still referring to
FIG. 2 a andFIG. 2 b , theflexible screen 600 includes an unfoldedregion 610, an unfoldedregion 620, and a bent region 630 (a region between E and F) that connects the unfoldedregion 610 and the unfoldedregion 620. Thebent region 630 is flexibly deformed when the mobile terminal switches between a folded state and expanded state. To provide better support for the unfoldedregion 610 and the unfoldedregion 620, the mobile terminal further includes ascreen reinforcing plate 210 and ascreen reinforcing plate 220. Thescreen reinforcing plate 210 is located on a back surface that is of the unfoldedregion 610 and that is away from a light-emitting surface, and is in contact with the back surface to provide support. Thescreen reinforcing plate 220 is located on a back surface that is of the unfoldedregion 620 and that is away from the light-emitting surface, and is in contact with the back surface to provide support. - With reference to
FIG. 2 a ,FIG. 2 b , andFIG. 2 c , the folding support assembly includes ahousing 310, ahousing 320, and a rotating member (which is not shown in the figure for simplification) that connects thehousing 310 and thehousing 320. Thehousing 310 and thehousing 320 are sometimes referred to as middle frames. The rotating member may be a hinge, or may be another part that has a flexible bending function. Thehousing 310 and thehousing 320 cooperate in rotation around an axis L (refer toFIG. 2 c ) by using a rotating member such as a hinge. Thehousing 310 is located on a side that is of the unfoldedregion 610 and that is away from the light-emitting surface, and is disposed opposite to the unfoldedregion 610. Thehousing 310 has a bearing surface configured to provide support (which is indirect support inFIG. 2 a ) for the unfoldedregion 610. Similarly, thehousing 320 is located on a side that is of the unfoldedregion 620 and that is away from the light-emitting surface, and is disposed opposite to the unfoldedregion 620. Thehousing 320 has a bearing surface configured to provide support (which is indirect support inFIG. 2 a ) for the unfoldedregion 620. The foregoing parts of the folding support assembly form a skeleton of the mobile terminal, and provide support for the parts of theflexible screen 600. - The mobile terminal further includes a
circuit board 420 disposed in thehousing 310 and aheat source 410 mounted on thecircuit board 420, and theheat source 410 may be a CPU. Abattery 430 is accommodated in thehousing 320. Theheat source 410 generates a relatively large amount of heat, and therefore the unfoldedregion 610 and the unfoldedregion 620 of theflexible screen 600 are heated unevenly. It should be understood that allocation of the elements in thehousing 310 and thehousing 320 is merely an example, and there may be another element layout that causes uneven heating of the flexible screen. - In addition, referring to
FIG. 2 a andFIG. 2 b , the bendingsupport part 340 is located on a side that is of thebent region 630 and that is away from the light-emitting surface. Referring toFIG. 2 c , the bendingsupport part 340 may be a shaft support plate. For example, the bendingsupport part 340 may specifically include a plurality ofsupport boards 341 arranged at intervals from the unfoldedregion 610 to the unfoldedregion 620. Eachsupport board 341 extends in a direction of the axis L, and every twoadjacent support boards 341 may be flexibly connected by using a flexible material. Therefore, eachsupport board 341 may be well attached to thebent region 630 to provide active support for the foldedregion 630. The “active support” means the following: Referring toFIG. 2 a , when the mobile terminal is in an expanded state, the bendingsupport part 340 provides support for thebent region 630 as thebent region 630 expands. Referring toFIG. 2 b , when the mobile terminal is in a folded state, thebent region 630 is flexibly bent, and the bendingsupport part 340 still provides support for thebent region 630 as thebent region 630 is bent and deformed. However, it should be understood that the bendingsupport part 340 is not limited to the form inFIG. 2 c , and may also be another member that can provide active support for thebent region 630. - An accommodation slot G1 is formed between the
housing 310 and the bendingsupport part 340, and an accommodation slot G2 is formed between thehousing 320 and the bendingsupport part 340. - With reference to
FIG. 2 a toFIG. 2 c , to transfer, to the unfoldedregion 620, heat emitted by theheat source 410, to balance heat received by the unfoldedregion 610 and heat received the unfoldedregion 620 and balance temperatures in the unfoldedregion 610 and the unfoldedregion 620, so as to reduce differences between colors in parts of theflexible screen 600, the mobile terminal provided in this embodiment of this application further includes atemperature equalization plate 700. The temperature equalization plate 70) includes atemperature equalization part 710, atemperature equalization part 720, and aflexible connection part 730 connecting thetemperature equalization part 710 and thetemperature equalization part 720. Thetemperature equalization part 710 is located between thescreen reinforcing plate 210 and thehousing 310, and thetemperature equalization part 720 is located between thescreen reinforcing plate 220 and thehousing 320. A location at which thetemperature equalization part 710 is connected to theflexible connection part 730 passes through the accommodation slot G1, and a location at which thetemperature equalization part 720 is connected to theflexible connection part 730 passes through the accommodation slot G2. Theflexible connection part 730 is located on a side that is of the bendingsupport part 340 and that is away from thebent region 630, instead of passing between the bendingsupport part 340 and thebent region 630. In this way, even if theflexible connection part 730 is slack and deformed after being used for a long time, because of shielding of the bendingsupport part 340, theflexible connection part 730 does not easily touch theflexible screen 600, which mitigates and even eliminates a technical problem that thebent region 630 of theflexible screen 600 is partially arched because thetemperature equalization plate 700 is slack, thereby improving user experience. - The unfolded
region 610, thehousing 310, and thetemperature equalization part 710 form a module group, and the unfoldedregion 620, thehousing 320, and thetemperature equalization part 720 form a module group. - In
FIG. 2 a , to enable the mobile terminal to switch from an expanded state to a folded state, a material of theflexible connection part 730 needs to have a flexible property. However, when the mobile terminal switches to a folded state, theflexible connection part 730 is gradually tightened. To prevent theflexible connection part 730 from bearing relatively large tensile force to be damaged in a tightening process, theflexible connection part 730 is lengthened in the mobile terminal shown inFIG. 2 a , so that a redundant structure is formed at one end of theflexible connection part 730. The “redundant structure” means the following: In a process in which theflexible connection part 730 extends from thetemperature equalization part 710 to thetemperature equalization part 720, an actual extended length of theflexible connection part 730 is greater than a minimum possible extended length of the flexible connection part 730 (that is, a length extended when theflexible connection part 730 extends clinging to a surface that is of the bendingsupport part 340 and that is away from the flexible screen 600). As shown inFIG. 2 b , theflexible connection part 730 just expands when the mobile terminal inFIG. 2 a switches to a folded state, and thetemperature equalization part 710 and thetemperature equalization part 720 do not pull theflexible connection part 730 with relatively large tensile force, which prevents theflexible connection part 730 from being damaged. To form the redundant structure in theflexible connection part 730, theflexible connection part 730 may be further disposed in a ripple shape, which is alternatively referred to as a wrinkle shape. These ripples are arranged in a direction from thetemperature equalization part 710 to thetemperature equalization part 720, which can also cushion tensile force caused to theflexible connection part 730 when the mobile terminal is folded. Alternatively, theflexible connection part 730 may form a ripple based on the foregoing bend structure. - In addition, to protect various elements in the mobile terminal, still referring to
FIG. 2 a , the mobile terminal further includes arear cover 110, arear cover 120, and ashaft housing 330. Therear cover 110 is disposed on a side that is of thehousing 310 and that is away from theflexible screen 600, and is fastened to thehousing 310. Therear cover 120 is disposed on a side that is of thehousing 320 and that is away from theflexible screen 600, and is fastened to thehousing 320. Theshaft housing 330 is disposed on a side that is of the bendingsupport part 340 and that is away from theflexible screen 600. The rotating member such as a hinge configured to connect thehousing 310 and thehousing 320 is located between the bendingsupport part 340 and theshaft housing 330. Theflexible connection part 730 of thetemperature equalization plate 700 may be located between the rotating member and the bendingsupport part 340, or may be located between the rotating member and theshaft housing 330. -
FIG. 3 a is a possible cross-sectional diagram of thetemperature equalization plate 700 shown inFIG. 2 a . The temperature equalization plate includes acapillary structure 703, anupper cover plate 701, and alower cover plate 702 that are disposed opposite to each other. Theupper cover plate 701 and thelower cover plate 702 may form a closed cavity through welding or the like. Thecapillary structure 703 is disposed in the cavity, and thecapillary structure 703 is filled with a specific amount of working fluid, such as a deionized water or other coolant, to form a phase change cycle system. A material of theupper cover plate 701 and a material of thelower cover plate 702 each may be a metal material such as copper or copper alloy, or may be a non-metal material with relatively good flexibility, such as polyimide PI, rubber, or another high molecular material. Thecapillary structure 703 may be made of copper powder, a copper braided mesh, or tow. - In addition, the
temperature equalization plate 700 may be directly made of a material with relatively good heat dissipation performance, such as graphite or graphene, and a ripple or bend structure is formed in theflexible connection part 730; or both a ripple and a bend are used as redundant structures. -
FIG. 3 b is a schematic diagram of a structure of another temperature equalization plate that may be used in a mobile terminal according to an embodiment of this application. Referring toFIG. 3 b , both thetemperature equalization part 710 and thetemperature equalization part 720 are flat, and theflexible connection part 730 connecting thetemperature equalization parts temperature equalization part 710, thetemperature equalization part 720, and theflexible connection part 730 each may be made of a material with relatively good heat dissipation performance, such as graphite or graphene. To protect the temperature equalization plate, protection layers 801 and 802 (not shown inFIG. 2 a andFIG. 2 b ) are respectively disposed on two sides of the temperature equalization plate. Two sides of thetemperature equalization part 710 are respectively bonded to the protection layers 801 and 802 by using an adhesive layer, and thetemperature equalization part 720 is separately bonded to the protection layers 801 and 802 by using an adhesive layer, but theflexible connection part 730 is not bonded to the protection layers 801 and 802. The adhesive layer used herein refers to a material layer playing a bonding function, which may also have specific elasticity, may be compressed or stretched, and may be one or more layers. -
FIG. 4 is a schematic diagram of another mobile terminal in an expanded state according to an embodiment of this application. Referring toFIG. 4 , a difference between the mobile terminal shown inFIG. 4 and the mobile terminal shown inFIG. 2 a lies in the following: A protruded part 341 (a part belonging to the bending support part 340) is formed at an end that is of the bendingsupport part 340 and that is close to thehousing 310. An accommodation slot G1 is formed between theprotruded part 341 and thehousing 310. An orthographic projection of thescreen reinforcing plate 210 on the light-emitting surface of theflexible screen 600 covers an orthographic projection of the accommodation slot G1 on the light-emitting surface of theflexible screen 600. In addition, as observed in a T direction, theprotruded part 341 and an edge part of thescreen reinforcing plate 210 are alternatively disposed. In this case, a partial region of an orthographic projection of theprotruded part 341 on the light-emitting surface of theflexible screen 600 overlaps a partial region of an orthographic projection of thescreen reinforcing plate 210 on the light-emitting surface of theflexible screen 600. In other words, there is overlapping between the orthographic projection of theprotruded part 341 on the light-emitting surface of theflexible screen 600 and the orthographic projection of thescreen reinforcing plate 210 on the light-emitting surface of theflexible screen 600. In addition, thetemperature equalization plate 700 still passes through the accommodation slot G1. In this case, to touch theflexible screen 600, thetemperature equalization plate 700 needs to pass through a bent channel formed between thescreen reinforcing plate 210 and a side surface that is of the bendingsupport part 340 and that is close to thescreen reinforcing plate 210, which further increases difficulty for thetemperature equalization plate 700 to touch theflexible screen 600. - It should be understood that in addition to the manner shown in
FIG. 4 , there may be some variations that can also achieve a similar effect. For example, an accommodation groove is formed on the side surface that is of the bendingsupport part 340 and that is close to thescreen reinforcing plate 210, and an edge of thescreen reinforcing plate 210 is fitted (a specific active gap is kept) into the accommodation groove. This can also prevent, to some extent, thetemperature equalization plate 700 from touching theflexible screen 600. In conclusion, it is only required to ensure that there is overlapping between the orthographic projection of thescreen reinforcing plate 210 on the light-emitting surface of theflexible screen 600 and an orthographic projection of the bendingsupport part 340 on the light-emitting surface of theflexible screen 600. - However, to say the least, there is no overlapping between the orthographic projection of the
screen reinforcing plate 210 on the light-emitting surface of theflexible screen 600 and the orthographic projection of the bendingsupport part 340 on the light-emitting surface of theflexible screen 600, but an orthographic projection, of an edge that is of the bendingsupport part 340 and that is close to thescreen reinforcing plate 210, on the light-emitting surface of theflexible screen 600 overlaps the orthographic projection of thescreen reinforcing plate 210 on the light-emitting surface of theflexible screen 600. In this case, the orthographic projection of thescreen reinforcing plate 210 on the light-emitting surface of theflexible screen 600 can cover an orthographic projection of the accommodation slot G1 on the light-emitting surface of theflexible screen 600. Compared with the mobile terminal shown inFIG. 2 a , this can still prevent, to some extent, thetemperature equalization plate 700 from touching theflexible screen 600. - Similarly, still referring to
FIG. 4 , a protruded part 342 (a part belonging to the bending support part 340) is formed at an end that is of the bendingsupport part 340 and that is close to thehousing 320, and an accommodation slot G2 is formed between theprotruded part 342 and thehousing 320. For a relationship between the bendingsupport part 340, thescreen reinforcing plate 220, and the accommodation slot G2, correspondingly refer to the relationship between the bendingsupport part 340, thescreen reinforcing plate 210, and the accommodation slot G1. - In addition, in
FIG. 2 a , the mobile terminal further includes aflexible circuit board 500, and theflexible circuit board 500 sequentially passes between thehousing 310 and therear cover 110, between the shaft housing and the rotating member, and between thehousing 320 and therear cover 120. Theflexible circuit board 500 may be configured to electrically connect lines on two sides of the rotating member, for example, electrically connect an electronic element on thehousing 310 and an electronic element on thehousing 320. -
FIG. 5 is a schematic diagram of another mobile terminal in an expanded state according to an embodiment of this application. Referring toFIG. 5 , a difference between the mobile terminal shown inFIG. 5 and the mobile terminal shown inFIG. 2 a lies in the following: A thickness d of theflexible connection part 730 is greater than a width of the accommodation slot G1, to prevent theflexible connection part 730 from passing through the accommodation slot G1 to touch a partial region that is of theflexible screen 600 and that is exposed from a slot between the bendingsupport part 340 and thescreen reinforcing plate 210, and further prevent theflexible connection part 730 from moving to a location between thescreen reinforcing plate 210 and thehousing 310. Therefore, it is always ensured that thetemperature equalization part 710 is straight and is not easily arched, and the flexible connection part is also prevented from being tensioned to be damaged. Correspondingly, that the thickness d of theflexible connection part 730 is greater than a width of the accommodation slot G2 can also achieve a similar effect. -
FIG. 6 a is a schematic diagram of another mobile terminal in an expanded state according to an embodiment of this application.FIG. 6 b is a schematic diagram of the mobile terminal shown inFIG. 6 a in a folded state. Referring toFIG. 6 a andFIG. 6 b , a difference between the mobile terminal shown inFIG. 6 a andFIG. 6 b and the mobile terminal shown inFIG. 2 a toFIG. 2 c lies in the following: Thetemperature equalization part 710 is located between thehousing 310 and therear cover 110, and thetemperature equalization part 710 may be bonded to therear cover 110, which may also balance temperatures in the unfoldedregion 610 and the unfoldedregion 620. Setting may be specifically selected based on a requirement. Alternatively, thetemperature equalization part 710 may be located between thehousing 320 and therear cover 120. - It should be understood that a variant may be made based on
FIG. 2 a ,FIG. 4 , andFIG. 5 . Thetemperature equalization part 720 is disposed between thehousing 310 and therear cover 110, or thetemperature equalization part 720 is disposed between thehousing 320 and therear cover 120. - The foregoing descriptions are merely specific implementations of this application, but are not intended to limit the protection scope of this application. Any variation or replacement readily figured out by a person skilled in the art within the technical scope disclosed in this application shall fall within the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.
Claims (10)
1. A mobile terminal, comprising:
a rotating member;
a flexible screen, wherein the flexible screen comprises two unfolded regions and a bent region located between the two unfolded regions, and the bent region is disposed opposite to the rotating member;
a bending support part, wherein the bending support part is located between the flexible screen and the rotating member to support the bent region of the flexible screen; and
a temperature equalization plate configured to balance temperatures in the two unfolded regions, wherein the temperature equalization plate comprises two temperature equalization parts opposite to the two unfolded regions in a one-to-one correspondence and a flexible connection part that connects the two temperature equalization parts, and the flexible connection part is located on a side of the bending support part and away from the flexible screen.
2. The mobile terminal according to claim 1 , wherein:
a housing is disposed on a side of each unfolded region of the flexible screen and away from a light-emitting surface of the flexible screen;
each group of unfolded region, housing, and temperature equalization part that correspond to each other form a module group; and
in at least one module group, the temperature equalization part is located between the unfolded region and the housing.
3. The mobile terminal according to claim 2 , wherein in a module group of each temperature equalization part located between the unfolded region and the housing that correspond to each other, an accommodation slot is formed between the housing and the bending support part, and a thickness of the flexible connection part is greater than a width of the accommodation slot.
4. The mobile terminal according to claim 2 , wherein;
a screen reinforcing plate configured to support the unfolded region is further disposed on a side surface of each unfolded region and away from the light-emitting surface; and
in a module group of each temperature equalization part located between the unfolded region and the housing that correspond to each other, an accommodation slot is formed between the housing and the bending support part, and an orthographic projection of the screen reinforcing plate on the light-emitting surface of the flexible screen covers an orthographic projection of the accommodation slot on the light-emitting surface of the flexible screen.
5. The mobile terminal according to claim 4 , wherein in the module group of each temperature equalization part located between the unfolded region and the housing that correspond to each other, there is overlapping between the orthographic projection of the screen reinforcing plate on the light-emitting surface of the flexible screen and an orthographic projection of the bending support part on the light-emitting surface of the flexible screen.
6. The mobile terminal according to claim 1 , wherein:
a housing is disposed on a side of each unfolded region of the flexible screen and away from a light-emitting surface of the flexible screen;
each group of unfolded region, housing, and temperature equalization part that correspond to each other form a module group; and
in at least one module group, the temperature equalization part is located on a side of the housing and away from the flexible screen.
7. The mobile terminal according to claim 6 , wherein:
a rear cover is further disposed on a side surface of the housing and away from the flexible screen; and
in the at least one module group, the temperature equalization part is fastened to the corresponding rear cover.
8. The mobile terminal according to claim 1 , wherein a redundant structure is formed in the flexible connection part.
9. The mobile terminal according to claim 8 , wherein the flexible connection part is ripple-shaped.
10. The mobile terminal according to claim 8 , wherein the flexible connection part is bend-shaped.
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CN202020442975.0U CN212850572U (en) | 2020-03-30 | 2020-03-30 | Mobile terminal |
CN202020442975.0 | 2020-03-30 | ||
PCT/CN2021/072104 WO2021196832A1 (en) | 2020-03-30 | 2021-01-15 | Mobile terminal |
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PCT/CN2021/072104 Continuation WO2021196832A1 (en) | 2020-03-30 | 2021-01-15 | Mobile terminal |
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US20240022656A1 (en) * | 2021-07-20 | 2024-01-18 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Foldable display panel |
CN113645332A (en) * | 2021-08-13 | 2021-11-12 | 维沃移动通信有限公司 | Electronic device |
CN113903261A (en) * | 2021-10-13 | 2022-01-07 | 上海天马微电子有限公司 | Display device control method and display device |
CN115996254B (en) * | 2021-10-20 | 2024-04-05 | 荣耀终端有限公司 | Electronic equipment |
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CN212850572U (en) | 2021-03-30 |
JP7403000B2 (en) | 2023-12-21 |
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EP4113958A4 (en) | 2023-08-16 |
WO2021196832A1 (en) | 2021-10-07 |
EP4113958A1 (en) | 2023-01-04 |
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